ION Publications

Comparison of High Rate Batch and Sequential GPS Processing Algorithms under Dynamics

Zhen Zhu, Frank van Graas

Abstract:

Uncorrelated samples of GPS carrier phase can be measured at a high rate in a tracking loop or via open-loop tracking. The high-rate carrier phase estimates from both approaches are expected to be equivalent to each other. However, the practical implementation of the tracking loop could cause a small difference in the measurement, which may become substantial when there is residual or transient error in the estimated carrier frequency.